Description
CP-7821-K9 Overview
The Cisco IP Phone 7821 is designed for small to large businesses. It delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience on Cisco on-premises and hosted infrastructure platforms and third-party hosted call control.
Quick Specs
Table 1 shows the Quick Spec.
| Product Code | CP-7821-K9 |
| Screen | 384 x 106 pixel (3.28 in. / 83.3 mm) |
| Ethernet Switch | 10/100 |
| Programmable Line Keys | 2 |
| Full Duplex Speakerphone | Yes |
| Number of Line Keys | 2 |
| Wideband Audio | Yes |
| PoE Class | 1 |
| Third-party Call Control | Yes |
| Replaceable Bezel | Yes |
| Package Weight | 1.7 Kg |
CP-7821-K9 Specification
CP-7821-K9 Specifications |
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| Signaling protocol support | ● Session Initiation Protocol (SIP) |
| Codec support | ● G.711a/μ, G.722, G.729a, iLBC |
| Key call features support | ● + Dialing (E.164)
● Abbreviated dial ● Adjustable ringing and volume levels ● Adjustable display contrast ● Agent greeting ● Auto-answer ● Auto-detection of headset (Not available on the IP Phone 7811) ● Busy Lamp Field (BLF) (Not available on the IP Phone 7811) ● Call back ● Call forward ● Call history ● Call park ● Call Pickup ● Call timer ● Call waiting ● Caller ID ● cBarge ● Corporate directory ● Conference ● Cross Cluster Extension Mobility (EMCC) ● Dial from the list ● Direct transfer ● Do not disturb ● Extension Mobility (EM) ● Forced access codes and client matter codes ● Group call pickup ● Hold/resume ● Immediate divert ● Intercom (Not available on the IP Phone 7811) ● Join (Not available on the IP Phone 7811) ● Message-waiting indicator ● Meet me conference ● Mobility ● Music on hold ● Mute ● Network profiles (automatic) ● On- and off-network distinctive ringing ● Personal directory ● Privacy ● Private Line Automated Ringdown (PLAR) ● Redial ● Ring tone per line appearance ● Shared line ● Silent monitoring and recording ● Speed dial ● Time and date display ● Transfer ● Voicemail ● Whisper coaching |
| Language support | ● Arabic (Arabic Area)
● Bulgarian (Bulgaria) ● Catalan (Spain) ● Chinese (China) ● Chinese (Hong Kong) ● Chinese (Taiwan) ● Croatian (Croatia) ● Czech (Czech Republic) ● Danish (Denmark) ● Dutch (Netherlands) ● English (United Kingdom) ● Estonian (Estonia) ● French (France) ● Finnish (Finland) ● German (Germany) ● Greek (Greece) ● Hebrew (Israel) ● Hungarian (Hungary) ● Italian (Italy) ● Japanese (Japan) ● Latvian (Latvia) ● Lithuanian (Lithuania) ● Korean (Korea Republic) ● Norwegian (Norway) ● Polish (Poland) ● Portuguese (Portugal) ● Portuguese (Brazil) ● Romanian (Romania) ● Russian (Russian Federation) ● Spanish (Columbia) ● Spanish (Spain) ● Slovak (Slovakia) ● Swedish (Sweden) ● Serbian (Republic of Serbia) ● Serbian (Republic of Montenegro) ● Slovenian (Slovenia) ● Thai (Thailand) ● Turkish (Turkey) |
| Multiple ring tones | ● The phone supports user-adjustable ring tones. |
| Directories | ● The phone identifies incoming messages and categorizes them for users on the screen.
This makes it fast and easy to return calls using direct dial-back capability. The corporate directory integrates with the Lightweight Directory Access Protocol (LDAP) standard directory. |
| Quality-of-service (QoS) options | ● The phone supports CDP and 802.1Q/p standards, and can be configured with an
801.1Q VLAN header containing the VLAN ID overrides configured by the Admin VLAN ID. |
| Security | ● Certificates
● Image authentication ● Device authentication ● File authentication ● Signaling authentication ● Media encryption using Secure Real-Time Transfer Protocol (SRTP) using AES-128 ● Signaling encryption using Transport Layer Security (TLS) Protocol using AES-128 or AES-256 ● Encrypted configuration files ● 802.1X authentication ● Cryptography |
| Configuration options | ● The user can configure IP address assignment statically or through the DHCP client. |
| Physical dimensions (H×W×D) | ● IP Phone 7821: 207 x 206 x 28mm (exclude foot stand) |
| Weight | ● IP Phone 7821: 867g |
| Display | ● IP Phone 7821: 3.5” 396×162 pixels |
| Ethernet switch | ● The phone has a 10/100BASE-T or a 10/100/1000BASE-T |
| Phone casing composition | ● Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic. |
| Power requirements | ● The phone is an interoperable IEEE 802.3af PoE (Class 1 device); 48 VDC is required;
it can be supplied locally at the desktop using an optional AC-to-DC power supply (CP-PWR-CUBE-3=). Use of the power supply also requires the use of one of the corresponding AC country cords. |
| Operational temperature | ● 32 to 104°F (0 to 40°C) |
| Nonoperational temperature shock | ● 14 to 140°F (-10 to 60°C) |
| Humidity | ● Operating 10% to 90%, non-condensing
● Non-operating 10% to 95%, non-condensing |
| Cosmetic | ● Cisco cosmetic class A |
| Certification and compliance | ● Regulatory Compliance
● CE Markings per directives 2004/108/EC and 2006/95/EC ● Safety ● UL 60950 Second Edition ● CAN/CSA-C22.2 No. 60950 Second Edition ● EN 60950 Second Edition (including A11 & A12) ● IEC 60950 Second Edition (including A11 & A12) ● AS/NZS 60950 ● GB4943 ● EMC – Emissions ● 47CFR Part 15 (CFR 47) Class B ● AS/NZS CISPR22 Class B ● CISPR22: 2005 w/Amendment 1: 2005 Class B ● EN55022: 2006 w/Amendment 1: 2007 Class B ● ICES003 Class B ● VCCI Class B ● EN61000-3-2 ● EN61000-3-3 ● KN22 Class B ● EMC – Immunity ● EN55024 ● CISPR24 ● EN60601-1-2 ● KN24 ● Armadillo Light ● Telecom ● FCC Part 68 HAC ● CS-03-HAC ● AS/ACIF S004 ● AS/ACIF S040 ● NZ PTC 220 ● Industry Standards: TIA 810 and TIA 920 ● Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at |
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